Gas density is frequently estimated indirectly by gas pressure sensors. Because the pressure in a tightly sealed compartment fluctuates greatly with temperature, such systems require temperature ...

Sensors that measure air flow, air quality, and chemical makeup are being deployed increasingly for both indoor and outdoor environmental monitoring, in homes, automobiles, and industrial facilities.

A research team has addressed the long-standing challenge of creating artificial olfactory sensors with arrays of diverse high-performance gas sensors. Their newly developed biomimetic olfactory chips ...